Visiting TVLine’s San Diego Comic-Con suite last week, Season 2 noob Eddie Cahill teased of the coming reveals, “The Dome is not as impenetrable as we thought,” perhaps alluding to the tunnel discovered in the latest episode. Cahill also said that the otherworldly barrier’s roots will be unearthed, dating back to Pac-Man and Donkey Kong era.

All told, the answers on the horizon, Mike Vogel says, will “broaden the world” of the TV series, as well as offer the people of Chester’s Mill at least the hope of escape.